Perhaps, but after doing a bit of research I came to conclude that this is actually just a non-alcoholic variation on two existing shots, namely the Tapeworm and the Hot Mexican Hooker.
The Tapeworm is a shot of vodka with a dollop of mayonnaise squeezed in (sorta like in the picture above) and sprinkled with pepper, and the Hot Mexican Hooker consists of two parts Tequila, one part Tabasco, and a dash of tuna can juice.
You shall never see the light of God. To the outer darkness you shall be banished for the wickedness thou hast wrought upon the earth. Get thee behind me, foul creature.
Pour 2 cl Helbing (caraway liquor ) into a shot glass. Place 1 solid slice of Mettwurst or Blood sausage on the glass and top with a thick dollop of remoulade (or spicy mustard).
Depending on your preference: eat the sausage first and then drink or drink first and then eat the sausage.
Does Bar mean the whole Pub, or does bar mean only the "Barkeepers workbench"? If the latter is the case, I may know of something worse.
There once was a "Bar" called "Clochard" where people said you had to drink a beer made up of all the leftover sips you could find on the tables around you to enjoy the full "Clochard-experience"
as a connoisseur of can-juice, tuna is bottom shelf. Canned mackerel and canned salmon have way better juice. The tippy top shelf can-juice is king oscar sardines in olive oil. The hardest can-juice to swallow imo is artichoke water. Surprisingly good: plain tomato sauce, tastes like plain v8!